Measuring – testing – or signalling instruments – Security or signal instrument or casing – Alarm or control thereof
Patent
1977-07-05
1978-09-19
Lucas, Susan J.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Alarm or control thereof
D1005
Patent
active
D02494817
REFERENCES:
patent: D213027 (1968-12-01), Walz
patent: D216231 (1969-12-01), Hauser
patent: 3681603 (1972-08-01), Scheidweiler et al.
Merchandising Week, Jan. 12, 1976, p. 14, Smoke Detector.
Pyrotronics, "Pyr-A-Larm.sup. .RTM. Bulletin, May 1974, Ionization Fire Detector.
Conforti Frederick J.
Hanig Harvey
Robertson Roy C. A.
Juettner Thomas R.
Lucas Susan J.
Pittway Corporation
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